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Question

ABCD is a trapezium in which ABDC,BD is a diagonal and E is the mid-point of them. A line is drawn through E parallel to AB intersecting BC and F. Then F is the mid-point of BC.
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A
True
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B
False
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Solution

The correct option is A True
In ΔDAB and ΔDEG
D is common
DBA=DGE [corresponding angles EFAB]
Thus, ΔDABΔDEG
DEDA=DBDG
DBDG=12
Thus G is the mid point of BD.
Similarly in ΔBCD and ΔBFG
B is common
BCD=BFG [corresponding angles EFCD]
Thus, ΔBCDΔBFG
BDBG=BCBF
BDBF=12
Thus F is the mid point of BC.

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